1255234663 has 4 divisors (see below), whose sum is σ = 1255662688. Its totient is φ = 1254806640.

The previous prime is 1255234633. The next prime is 1255234681. The reversal of 1255234663 is 3664325521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3664325521 = 157 ⋅23339653.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255234663 is a prime.

It is a super-2 number, since 2×1255234663² = 3151228118393447138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255234613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209583 + ... + 215488.

It is an arithmetic number, because the mean of its divisors is an integer number (313915672).

Almost surely, 2^1255234663 is an apocalyptic number.

1255234663 is a deficient number, since it is larger than the sum of its proper divisors (428025).

1255234663 is an equidigital number, since it uses as much as digits as its factorization.

1255234663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428024.

The product of its digits is 129600, while the sum is 37.

The square root of 1255234663 is about 35429.2910315744. The cubic root of 1255234663 is about 1078.7189494654.

The spelling of 1255234663 in words is "one billion, two hundred fifty-five million, two hundred thirty-four thousand, six hundred sixty-three".